Abstract: The salinity and density of fluid inclusions in quartz, sphalerite and calcite hosted in gold-bearing veinlets of Jianante gold deposit, Xinjiang, were studied by micro temperature measurement measurement. Also, the components in fluid inclusions were studied by using Laser Raman Spectrometry. The results indicate that only a H₂O peak was shown on the Laser Raman spectrum atlas for all fluid inclusions, which was attributed to the NaCl-H₂O system. Homogeneous temperatures ranged from 180℃ to 260℃ with salinities in the range of 0.17%-12.52% and densities in the range of 0.49-0.97 g/cm³. This indicates that ore-forming fluids are characterized by low temperature, low salinity and low density. The conclusion is that the Jiamante Au deposit is an epithermal deposit.